The Renegade Theater company is putting on a play called “Bathtub Moby Dick” in an apartment at 1816 Wharton St., a space called Wharton Heights. 6 p.m. Tickets are $15 but for Passyunk Post readers, they are discounted to $10 if you buy them at the box office at the venue and use the code POST. There’s an ambiguous, wacky trailer here.

Speaking of wacky, since the Fringe Festival is still going on (check out the remaining South Philly options here), that means its infamous late-night cabaret is still going on too. This year it’s at the Underground Arts space at 12th and Callowhill. It’s free, has a bar, and each night of the week through the festival there is a different performance, usually including live music: Friday, something called God’s Gravy; Saturday, The Howling Men; Sunday, Pluto’s Stepchildren.

Saturday

The Lower Moyamensing Civic Association is hosting a flea market at Broad and Snyder from 9 a.m. to 3 p.m. You can donate sellable, intact items between 7 and 9 a.m. Expect “gently used household items, electronics, books, toys, collectibles, pictures & frames, and small appliances and furniture.” It’s a fundraiser for the civic’s effort, so stop by and buy something useless even if it’s only to support a good cause.